Seal or guard



C. W. YOUNG SEAL 0R GUARD Des. 13, 1932.

Filed Ooi., 12. 1929 2 Sheets-Sheet mf w32-,f Q. w. vouw@ l SEAL 0RGUARD Filed Qct. 12, 1929 2 Sheets-Sheet 2 a M rn T N Q m v m M W Mw Hw,

w I@ E! .mw E w 5 4, 4 4 ,y 0 n m i@ lll Patented 13, 1932 STATES OTTOW. "YOUNG, 0F EAST ORANGE, NEW JERSEY, ASSIGNOR T0 GENERAL MUTORS (20KPO'IION, 0F DETROIT, MICHIGAN, A CORPORATION 0F DELAWARE snai. on armanApplication led October 12, l1929. Serial No. 399,373.v

This invention relates to seals or guards and comprises all the featuresof novelty herein disclosed. An object of the inventionl is to providean improved seal or guard for sealing the space between a shaftandacasing. Another object is to provide an improved cap for preventingleakage of lubricant from a casing and entrance of foreign matter to thecasing. To these ends and to improve generally and in detail upondevices of this character the invention also consists in the variousmatters hereinafter described and claimed.

lin its broader aspects the invention is not necessarily limited tothespecific constructions selected for illustrative purposes in theaccompanying drawings in which Fig. 1 is a vertical section of a portionof a journal box.

Fig. 2 is a sectional view` of an end cap.

Figs. 3 and 4 are end views of the cap.

Fig. 5 is a vertical section of another form of the invention and Figs.6, 7 and 8 are'similar views of other modified forms.

rlhe numeral 10'indicates a shaft or axle carrying a raceway sleeve 12for roller bearings 14 having end rings 16. The rollersrun on an outerraceway sleeve 18 confined 1n a straight cylindrical bore of a journalbox or casing 20. A cap 22 having a ange 24 engaging a gasket 26 issecured to the box by through bolts 27, the heads of the boltsbeing heldby ribs 28 on the end cap. A portion 29 of the cap fits th bore of thebox and 1ts 1nner wall is provided with grease grooves 3() at the axle.A wide groove 32 of the cap is arranged outside of a groove 34 and a rib36 on the axle to receive oil thrown off from the rib and conduct itthrough a hole 38 to the bottom of the box.y YThe cap has a flat face 40to take the induced thrust ofthe adjacent end ring 16 and a series oflugs 42 to position the outer race sleeve 18. The space 44 at the top ofthe box between adjacent lugs allows the oil propelled by the rollers topass out of the sleeve 18 into a relief groove 46 which conducts oilaround the cap to an opening48 communicating with a cored out lubricantreceptacle 50 at the bottom of the box. This relief 50 groove preventsthe building up of an oil groove 62. A guard ring 64, of substantiallyU-shaped cross-section, has its inner wall66 pressed on the axle againsta shoulder and extending to the groove 62, the exterior of this innerwalLhaving close running clearance `with the axial flange 56. The outerwall 68 of the guard ring extends axially into the groove 60, theexterior having a close running clearance with the flange 54. Hence anywater that might find its way into the groove would drain around a wall72 and out through a slot 74 at the bottom of the iange 54.' Any oilthat might creep from the box into the grease groove 62 would drain backinto the box lthrough a hole 76. The box and axle can have relativelongitudinal play withn out destroyin the vclose fit of the seal.

In Fig. 6, t e cap 80 has a radial iange 82 extending close to the axle,and outside the flange is an annular recess 84 closed by a atplate 86 inthe form ofa ring just clearing the axle. The plate '86 is secured in anannular recess 88 of the cap by screws 90 the counter-sunk heads ofwhich are prickpunched at intervals into the plate. In the recess 84 isa split spring ring 92 having a peripheral groove receiving a splitsprlng ring 94 which makes the ring 92 hug the axle. Y

The ring 92 is preferably of bronze and has a close running iit with thewalls of its recess. Relative longitudinal movement between the box andaxle can occur, the ring 92 sliding on the axle but maintaining closeengagement therewith to seal the box\a ainst escape of lubricant or'entrance o foreign matter. v

In Fig. 7, the construction is similar to that of Fig. 5, the sealagainst escape of oil being more efficient. The guard ring y96 has itsinner wall 98 longer than the outer Wall 100 and extended partly intovthe wide groove l B0 substantially as descri td t K :inodoro 102. ylheexterior of the vvall 98 is in close running relation to greasegrooves102 on a Hane'e 10d. 'll`he exterior of the outer wall 100 has a raisedportion at the end forming t a groove or bevel 106 'adjacent to thesurrounding Hange to shed foreign matter. 'l`he v relief groove 108extends deeper into the end cap inside a flange 110 thereof.

ln lFig. 8, the end cap 112 is put in through ro the interior of thebox, its locating collar lll passing freely through. the outer bearingsleeve and engaging a Hange 11H on the hox inside a groove 118 of thebox.. lhe cap Hts a round bore in the Hange 116 and hes grease 'ltgrooves 120 at the shaft. The cap is thinner thanthose previouslydescribed and requires no fastening bolts but otherwise is similar tothe other forms.

l claim: to 1.. ln a device of the character described9 a casing7 ashaft extending into the casingy a bearing between the shaft and thecasing? an end cap secured .at the end of the casing and rnalring aclose joint with the shaft7 the all cap having an axially extendingHarige with a thrust face for the bearing, and the exterior wall of theHange having a peripheral relief groove communicating with the hear ingto conduct lubricant therefrom; substanoo tially as described. l

ln a device of the character described9 a casing, ashaftextending intothe casing, a bearing hetvveen the shaft and the casing, en end capsecured at the end of the casing 3h and nialring a close joint with theshaft, the cap having an axially extending Harige with a thrust face forthe hearing, the Harige also having spaced lugs to locete the outer receof the hearing and a peripheral relief groove lacommunieating with thebearing; subbsten tialljv as described.

H. ln e, device of the character described, a casing9 a shaft extendininto the casing9 a bearing between the shaft and the casing, t5 en endcap secured at the end of the casing and rnalring a close joint with theshaft, the cap having an axially extending Harige with spaced lugs tolocate the outer race of the bearing, and the exterior wall of theflange 50 having a peripheral relief oove communi-` eating with thebearing; su stantially as described 4:. A cap for closing the spacebetween a shaft and a casing and comprising a ring -f65 havinroppositely extending axial flanges, one o said flanges having its outerwall provided with a peripheral relief groove, and the other of saidflanges having its outer wall' provided with a periphral drain groove;

e In testimon whereof I hereunto aiix my signature. v

OTTO YOUNG.

